Note: This API call is for DOS and Win16 personality only. Use Family API for portability.

2018/09/07 05:04 · prokushev · 0 Comments

INT 21H

AH Description Version Implemented in DOSKRNL
00H Program terminate 1.0+
01H Character input 1.0+ Yes
02H Character output 1.0+ Yes
03H Auxiliary input 1.0+ Yes
04H Auxiliary output 1.0+ Yes
05H Printer output 1.0+ Yes
06H Direct console I/O 1.0+ Yes
07H Direct console input without echo 1.0+ Yes
08H Console input without echo 1.0+ Yes
09H Display string 1.0+ Yes
0AH Buffered keyboard input 1.0+ Yes
0BH Get input status 1.0+ Yes
0CH Flush input buffer and input 1.0+ Yes
0DH Disk reset 1.0+
0EH Set default drive 1.0+
0FH Open file (FCB) 1.0+
10H Close file (FCB) 1.0+
11H Find first file (FCB) 1.0+
12H Find next file (FCB) 1.0+
13H Delete file (FCB) 1.0+
14H Sequential read (FCB) 1.0+
15H Sequential write (FCB) 1.0+
16H Create or truncate file (FCB) 1.0+
17H Rename file (FCB) 1.0+
19H Get default drive 1.0+
1AH Set disk transfer address 1.0+
1BH Get allocation info for default drive 1.0+
1CH Get allocation info for specified drive 1.0+
1FH Get disk parameter block for default drive 1.0+
21H Random read (FCB) 1.0+
22H Random write (FCB) 1.0+
23H Get file size in records (FCB) 1.0+
24H Set random record number (FCB) 1.0+
25H Set interrupt vector 1.0+
26H Create PSP 1.0+
27H Random block read (FCB) 1.0+
28H Random block write (FCB) 1.0+
29H Parse filename (FCB) 1.0+
2AH Get date 1.0+
2BH Set date 1.0+
2CH Get time 1.0+
2DH Set time 1.0+
2EH Set verify flag 1.0+
2FH Get disk transfer address 2.0+
30H Get DOS version 2.0+
31H Terminate and stay resident 2.0+
32H Get disk parameter block for specified drive 2.0+
33H Extended functions 2.0+ Yes
3300H Get current extended break state 2.0+ Yes
3301H Set state of extended Ctrl+C/Ctrl+Break checking 2.0+ Yes
3302H Get and set extended Control-Break checking state 3.0+ Yes
3303H Get current CPSW state 3.4/4.0 No
3304H Set CPSW state 3.4/4.0 No
3305H Get boot drive 4.0+ Yes
3306H Get true version number 5.0+ Yes
34H Get InDOS flag pointer 2.0+
35H Get interrupt vector 2.0+
36H Get free disk space 2.0+
37H Extended functions 2.0+
3700H Get switch character 2.0+
3701H Set switch character 2.0+
3702H Get availdev flag 2.x and 3.3+
3703H Set availdev flag 2.x and 3.3+
38H Get or set country info 2.0+
3800H Get current country info 2.0+
3801H Get/set specified country info 3.0+
39H Create subdirectory 2.0+
3AH Remove subdirectory 2.0+
3BH Change current directory 2.0+
3CH Create or truncate file 2.0+
3DH Open file 2.0+
3EH Close file 2.0+
3FH Read file or device 2.0+
40H Write file or device 2.0+
41H Delete file 2.0+
42H Move file pointer 2.0+
43H Extended functions 2.0+
4300H Get file attributes 2.0+
4301H Set file attributes 2.0+
44H Extended functions 2.0+
4400H Get device information 2.0+
4401H Set device information 2.0+
4402H Read from character device control channel 2.0+
4403H Write to character device control channel 2.0+
4404H Read from block device control channel 2.0+
4405H Write to block device control channel 2.0+
4406H Get input status 2.0+
4407H Get output status 2.0+
4408H Check if block device removable 3.0+
4409H Check if block device remote 3.1+
440AH Check if handle is remote 3.1+
440BH Set sharing retry count 3.1+
440CH Generic character device request 3.2+
440DH Generic block device request 3.2+
440EH Get logical drive map 3.2+
440FH Set logical drive map 3.2+
4410H Query generic IOCTL capability (handle) 5.0+
4411H Query generic IOCTL capability (drive) 5.0+
45H Duplicate handle 2.0+
46H Redirect handle 2.0+
47H Get current directory 2.0+
48H Allocate memory 2.0+
49H Release memory 2.0+
4AH Reallocate memory 2.0+
4BH Execute program 2.0+
4CH Terminate with return code 2.0+
4DH Get program return code 2.0+
4EH Find first file 2.0+
4FH Find next file 2.0+
50H Set current PSP 2.0+ Yes
51H Get current PSP 2.0+ Yes
52H Get DOS internal pointers (SYSVARS) 2.0+
53H Create disk parameter block 2.0+
54H Get verify flag 2.0+
55H Create program PSP 2.0+
56H Rename file 2.0+
57H Extended functions 2.0+
5700H Get file's last-written date and time 2.0+
5701H Set file's last-written date and time 2.0+
58H Get or set allocation strategy 2.11+
5800H Get memory allocation strategy 2.11+
5801H Set memory allocation strategy 2.11+
5802H Get UMB link state 5+
5803H Set UMB link state 5+
59H Get extended error info 3.0+
5AH Create unique file 3.0+
5BH Create new file 3.0+
5CH Lock or unlock file 3.0+
5C00H Lock region of file 3.0+
5C01H Unlock region of file 3.0+
5DH File sharing functions 3.0+
5D07H Get redirected printer mode 3.1+
5D08H Set redirected printer mode 3.1+
5D09H Flush redirecter printer output 3.1+
5D0AH Set extended error information 3.1+
5EH Network functions 3.0+
5E00H Get machine name 3.1+
5E01H Set machine name 3.1+
5E02H Set network printer setup string 3.1+
5E03H Get network printer setup string 3.1+
5E04H Set printer mode 3.1+
5E05H Get printer mode 3.1+
5FH Network redirection functions 3.0+
5F00H Get redirection mode 3.1+
5F01H Set redirection mode 3.1+
5F02H Get redirection list entry 3.1+
5F03H Redirect device 3.1+
5F04H Cancel redirection 3.1+
5F05H Get extended redirection list entry 4+
5F07H Enable drive 5+
5F08H Disable drive 5+
60H Qualify filename 3.0+
61H OS/2 File System Join/Subst OS/2 1.0+
62H Get current PSP 3.0+ Yes
63H Get DBCS lead byte table pointer 3.0+
64H Set wait for external event flag / OS/2 VDM API 3.2+ / OS/2 2.0+
65H Get extended country info 3.3+
6500H Set general internationalization info 7.1+
6501H Get general internationalization info 3.3+
6502H Get pointer to uppercase table 3.3+
6503H Get pointer to lowercase table 6.2+
6504H Get pointer to filename uppercase table 3.3+
6505H Get pointer to filename terminator table 3.3+
6506H Get pointer to collating sequence table 3.3+
6507H Get pointer to Double-Byte Character Set table 4+
6520H Capitalize character 4+
6521H Capitalize string 4+
6522H Capitalize ASCIZ string 4+
6523H Determine if character represents Yes/No response 4+
65A0H Capitalize filename character 4+
65A1H Capitalize counted filename string 4+
65A2H Capitalize ASCIZ filename 4+
66H Get or set code page 3.3+
6601H Get global code page table 3.3+
6602H Set global code page table 3.3+
67H Set handle count 3.3+
68H Commit file 3.3+
69H Get or set media id 4.0+
6900H Get serial number 4.0+
6901H Set serial number 4.0+
6AH Commit file 4.0+
6CH Extended open/create file 4.0+ / OS/2 1.0+
6DH Extended Make directory OS/2 1.0+
6EH DosEnumAttrib OS/2 1.0+
6FH DosQMaxEASize OS/2 1.0+
71H Long filename functions 7.0+ (Win95)
73H FAT32 functions 7.0+ (Win95)
DOS API
Process manager INT 20H, INT 21H: 00H, 25H, 26H, 31H, 34H, 35H, 4BH, 4CH, 4DH, 50H, 51H, 52H, 55H, 62H, INT 22H, INT 27H, INT 28H
File manager INT 25H, INT 26H, INT 21H: 0DH, 0EH, 0FH, 10H, 11H, 12H, 13H, 14H, 15H, 16H, 17H, 19H, 1AH, 1BH, 1CH, 21H, 22H, 23H, 24H, 27H, 28H, 29H, 2EH, 2FH, 32H, 3305H, 36H, 39H, 3AH, 3BH, 3CH, 3DH, 3EH, 3FH, 40H, 41H, 42H, 4300H, 4301H, 45H, 45H, 46H, 4EH, 4FH, 54H, 56H, 5700H, 5701H, 5AH, 5BH, 5c00H, 5c01H, 60H, 67H, 68H, 6900H, 6901H, 6AH, 6CH
Character Device I/O INT 29H, INT 21H: 01H, 02H, 03H, 04H, 05H, 06H, 07H, 08H, 09H, 0AH, 0BH, 0AH, 0CH, 5D07H, 5D08H, 5D09H, 5D0AH
Signals INT 23H, INT 24H, INT 21H: 3300H, 3301H, 3302H
Memory manager INT 21H: 48H, 49H, 4AH, 5800H, 5801H, 5802H, 5803H
Date and Time INT 21H: 2AH, 2BH, 2CH, 2DH
Misc INT 21H: 30H, 3306H, 3700H, 3701H, 3702H, 3703H, 59H
NLS INT 21H: 3303H, 3304H, 3800H, 3801H, 6300H, 6301H, 6301H, 6500H, 6501H, 6502H, 6503H, 6504H, 6505H, 6506H, 6507H, 6520H, 6521H, 6522H, 6523H, 65A0H, 65A1H, 65A2H, 6601H, 6602H
Devices INT 21H: 4400H, 4401H, 4402H, 4403H, 4404H, 4405H, 4406H, 4407H, 4408H, 4409H, 440AH, 440BH, 440CH, 440DH, 440EH, 440FH, 4410H, 4411H, 53H
Network INT 21H: 5E00H, 5E01H, 5E02H, 5E03H, 5E04H, 5E05H, 5F00H, 5F01H, 5F02H, 5F03H, 5F04H, 5F05H, 5F07H, 5F08H
osFree Macro Library
Video I/O @SetMode @SetCurSz @SetCurPos @GetCur @SetPage @ScrollUp @ScrollDn @Scroll @GetChAtr @PutChAtr @PutCh @SetPalet @SetColor @SetDot @GetDot @WrtTTY @VideoState @GetMode @GetDisplay @GetVideoState @GetEGAInfo @Cls
Hardware info @Equipment @MemSize
Serial I/O @AuxInit @AuxSendChar @AuxRecieveChar @AuxStatus
Tape I/O @TapeOn @TapeOff @TapeRead @TapeWrite
Keyboard I/O @KbdStatus @CharIn @CharPeek
Printer I/O @PrnPrint @PrnInit @PrnStatus
Disk I/O @DskReset @DskStatus @DskRead @DskWrite @DskVerify @DskFormat
Date and Time @SetTime @GetTime
Mouse @MouInit @MouShowPointer @MouStatus @MouSetPos @MouSetMickey @MouRegion
Memory manager @ModBlok SET_BLOCK
2022/10/04 14:28 · prokushev · 0 Comments
2018/09/04 17:23 · prokushev · 0 Comments